HY

Hong Sun Yu

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,665,612 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11380178 Photoelectric smoke detector having double-bulkhead darkroom structure Byung Kwon LEE 2022-07-05